ScreenUtil

ScreenUtil

import android.app.Activity;
import android.content.Context;
import android.content.res.Resources;
import android.graphics.Color;
import android.os.Build;
import android.provider.Settings;
import android.view.View;
import android.view.Window;
import android.view.WindowManager;

import java.lang.reflect.Method;

/**
 * 提供屏幕处理相关功能
 *
 * @author puke
 * @version 2018/5/21
 */
public class ScreenUtil {

    private ScreenUtil() {
    }

    /**
     * 通过设置全屏，设置状态栏透明
     */
    public static void fullScreen(Activity activity) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
                // 5.x开始需要把颜色设置透明，否则导航栏会呈现系统默认的浅灰色
                Window window = activity.getWindow();
                View decorView = window.getDecorView();
                // 两个 flag 要结合使用，表示让应用的主体内容占用系统状态栏的空间
                int option = 0;
                option = View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN
                        | View.SYSTEM_UI_FLAG_LAYOUT_STABLE;
                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                    option |= View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR;
                }
                decorView.setSystemUiVisibility(option);
                window.addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
                window.setStatusBarColor(Color.TRANSPARENT);
                // 导航栏颜色也可以正常设置
                // window.setNavigationBarColor(Color.TRANSPARENT);
            } else {
                Window window = activity.getWindow();
                WindowManager.LayoutParams attributes = window.getAttributes();
                int flagTranslucentStatus = WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS;
                int flagTranslucentNavigation = WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION;
                attributes.flags |= flagTranslucentStatus;
                // attributes.flags |= flagTranslucentNavigation;
                window.setAttributes(attributes);
            }
        }
    }

    /**
     * 设置沉浸式状态栏属性
     */
    public static void setImmersiveStatusBar(Activity activity) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            activity.getWindow().setStatusBarColor(Color.TRANSPARENT);
            activity.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_STABLE
                    | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
        } else if (Build.VERSION_CODES.KITKAT <= Build.VERSION.SDK_INT) {
            activity.getWindow().setFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS,
                    WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        }
    }

    public static int getNavigationBarHeight() {
        Context context = App.getApplication();
        Resources resources = context.getResources();
        int resourceId = resources.getIdentifier("navigation_bar_height", "dimen", "android");
        if (resourceId > 0) {
            //判断底部导航栏是否为显示状态
            boolean navigationBarShowing = isNavigationBarShowing();
            if (navigationBarShowing) {
                return resources.getDimensionPixelSize(resourceId);
            }
        }
        return 0;
    }

    public static boolean isNavigationBarShowing() {
        Context context = App.getApplication();
        //判断手机底部是否支持导航栏显示
        boolean haveNavigationBar = checkDeviceHasNavigationBar();
        if (haveNavigationBar) {
            if (Build.VERSION.SDK_INT >= 17) {
                String brand = Build.BRAND;
                String mDeviceInfo;
                if (brand.equalsIgnoreCase("HUAWEI")) {
                    mDeviceInfo = "navigationbar_is_min";
                } else if (brand.equalsIgnoreCase("XIAOMI")) {
                    mDeviceInfo = "force_fsg_nav_bar";
                } else if (brand.equalsIgnoreCase("VIVO")) {
                    mDeviceInfo = "navigation_gesture_on";
                } else if (brand.equalsIgnoreCase("OPPO")) {
                    mDeviceInfo = "navigation_gesture_on";
                } else {
                    mDeviceInfo = "navigationbar_is_min";
                }

                if (Settings.Global.getInt(context.getContentResolver(), mDeviceInfo, 0) == 0) {
                    return true;
                }
            }
        }
        return false;
    }

    private static boolean checkDeviceHasNavigationBar() {
        Context context = App.getApplication();
        boolean hasNavigationBar = false;
        Resources rs = context.getResources();
        int id = rs.getIdentifier("config_showNavigationBar", "bool", "android");
        if (id > 0) {
            hasNavigationBar = rs.getBoolean(id);
        }
        try {
            Class systemPropertiesClass = Class.forName("android.os.SystemProperties");
            Method m = systemPropertiesClass.getMethod("get", String.class);
            String navBarOverride = (String) m.invoke(systemPropertiesClass, "qemu.hw.mainkeys");
            if ("1".equals(navBarOverride)) {
                hasNavigationBar = false;
            } else if ("0".equals(navBarOverride)) {
                hasNavigationBar = true;
            }
        } catch (Exception e) {

        }
        return hasNavigationBar;
    }
}